fix(ci): remove broken pip install fallback in build.sh — build is a declared dep

Author: fgogolli

dev-tools/package/build.sh

@@ -29,27 +29,13 @@ if [ "$QUIET" = false ]; then
 fi
 rm -rf dist/ build/ -- *.egg-info/
 
-# Install build dependencies if needed
+# Verify build dependencies are present (declared in pyproject.toml dev deps)
 if [ "$QUIET" = false ]; then
     echo "INFO: Checking build dependencies..."
 fi
 if ! $RUN_TOOL python -c "import build" 2>/dev/null; then
-    if [ "$QUIET" = false ]; then
-        echo "INFO: Installing build dependencies..."
-    fi
-    if command -v uv >/dev/null 2>&1; then
-        if [ "$QUIET" = true ]; then
-            uv pip install build >/dev/null 2>&1
-        else
-            uv pip install build
-        fi
-    else
-        if [ "$QUIET" = true ]; then
-            $RUN_TOOL pip install build >/dev/null 2>&1
-        else
-            $RUN_TOOL pip install build
-        fi
-    fi
+    echo "ERROR: 'build' package not found. Ensure 'uv sync --all-extras' has been run." >&2
+    exit 1
 fi
 
 # Build package